/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package storymotion.main;

import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import storymotion.keyword.Keyword;
import storymotion.keyword.KeywordDAO;
import storymotion.photo.Photo;
import storymotion.photo.PhotoDAO;
import storymotion.storytelling.Storytelling;
import storymotion.storytelling.StorytellingDAO;
import storymotion.user.User;

/**
 *
 * @author leoomoreira
 */
public class MainServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        HttpSession session = request.getSession();
        PhotoDAO photoDAO = null;
        StorytellingDAO storytellingDAO = null;
        KeywordDAO keywordDAO = null;
        try {
            photoDAO = new PhotoDAO();
            storytellingDAO = new StorytellingDAO();
            keywordDAO = new KeywordDAO();
            
            User user = (User) session.getAttribute("user");
            
            List<Photo> photoList = photoDAO.getByUserId(user.getId());
            for (int i = 0; photoList != null && i < photoList.size(); i++) {
                Photo p = photoList.get(i);
                List<Keyword> keywordsList = keywordDAO.getByPhotoId(p.getId());
                if (keywordsList != null && keywordsList.size() > 0) {
                    request.setAttribute("keywordsList_" + p.getId(), keywordsList);
                }
            }
            request.setAttribute("photoList", photoList);
            
            List<Storytelling> storytellingList = storytellingDAO.getByUserId(user.getId());
            request.setAttribute("storytellingList", storytellingList);
            
            keywordDAO.commit();
            photoDAO.commit();
            storytellingDAO.commit();
        } catch (SQLException ex) {
            request.setAttribute("photoList", new ArrayList<Photo>());
            request.setAttribute("storytellingList", new ArrayList<Storytelling>());
            
            if (keywordDAO != null) {
                try {
                    keywordDAO.rollback();
                } catch (SQLException ex1) {
                }
            }
            if (photoDAO != null) {
                try {
                    photoDAO.rollback();
                } catch (SQLException ex1) {
                }
            }
            if (storytellingDAO != null) {
                try {
                    storytellingDAO.rollback();
                } catch (SQLException ex1) {
                }
            }
        }

        request.getRequestDispatcher("WEB-INF/pages/main.jsp").forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
